1a) Pick any commercial CPUs available in state-of-the-art and identify their multilevel caches and their sizes.  b) Explain the operation of CPU cache and discuss the meaning of a cache hit and a cache miss? What is the impact of a cache miss in the overall performance of a program? c) What is cache coherency in multicore architectures? With examples.

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Q: What is "cache coherence" and why is it vital in multi-core systems?

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Q: Question: What is thread-level parallelism, and how is it related to multi-core architectures?

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A: I have answered this question in step 2.

Q: It is now possible to look at the benefits and drawbacks of shared and private L2 caches for…

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Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.